Facebook opens its API. Now there are businesses designed to profit because of that opportunity.

I’m especially interested in exploring what I’ve been calling the because effect. This is what you get when your new business isn’t just about inventing and controlling technologies and standards, but about taking advantage of the new opportunities opened up by fresh new technologies and standards. For example, making money because of blogging, or RSS, or desktop Linux, or whatever — rather than just with those things.

The because effect is a kind of jujitsu. While other people look to make money with something, you’re finding ways of making money because of something.